Characteristics of speed sensorless vector controlled two induction motor drive fed by single inverter

The purpose of this paper is to present that characteristics of speed sensorless vector controlled two induction motor drives fed by a single inverter. The parameters of each motor, namely rotor speed and rotor flux, are estimated using rotor flux and speed estimator for achievement speed sensorless control. The validity and effectiveness of control method as two motors are demonstrated through simulations with MATLAB. This paper presents simulation results, as two motors added unbalanced load and connected different rating motors. So, two different powers outputs are generated by single inverter. The speed difference between two motors of simulation results are verified with speed-torque characteristics of induction motors.